13045939 has 4 divisors (see below), whose sum is σ = 13076640. Its totient is φ = 13015240.

The previous prime is 13045933. The next prime is 13045943. The reversal of 13045939 is 93954031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93954031 = 19 ⋅4944949.

It is a cyclic number.

It is not a de Polignac number, because 13045939 - 2⁷ = 13045811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13045933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14704 + ... + 15565.

It is an arithmetic number, because the mean of its divisors is an integer number (3269160).

Almost surely, 2^13045939 is an apocalyptic number.

13045939 is a deficient number, since it is larger than the sum of its proper divisors (30701).

13045939 is an equidigital number, since it uses as much as digits as its factorization.

13045939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30700.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 13045939 is about 3611.9162504133. The cubic root of 13045939 is about 235.4101123017.

The spelling of 13045939 in words is "thirteen million, forty-five thousand, nine hundred thirty-nine".